Why does urine sometimes smell similar to asparagus?

Why does urine sometimes smell similar to asparagus?
Because you ate asparagus or other related vegetables. Brussels sprouts will also make your urine smell approaching vegetables.
In fact, it's the result of a simple chemical response. Asparagus contains a sulfur compound called mercaptan, that's also found contained by rotten eggs, onions, and garlic. When your digestive tract breaks down the mercaptan, by-products are released that cause the funny smell. The process is so prompt that your urine can develop the odor within 15 to 30 minutes of drinking asparagus.
Apparently, the body's ability to break down mercaptan is genetic, and the potential to actually smell the byproducts is also genetic.
probably ,you ate too much of it for supper=seriously i don't know